Safety
Nervecept Side Effects: Is It Safe, and Who Should Ask First?
Nervecept has not been tested for safety as a product. The sources we read list side effects and cautions for its ingredients: stomach upset, allergy in people with shellfish allergy, and bleeding risk with blood thinners. The label prints CONTAINS: Shellfish (Crayfish). Ask a doctor or pharmacist first, especially if you take medicine or have a medical condition.
Written by the Nervecept label deskUpdated
The short answer01
Is Nervecept safe to take?
It depends on you. No safety study of Nervecept exists. For healthy adults the ingredients are generally described as well tolerated in the usual amounts, with real exceptions.
The FDA does not approve supplements before they are sold 1. NIH says natural does not always mean safe, and that supplements can interact with medicines and with surgery 2. The FDA has also warned that some pain and arthritis products contain hidden drug ingredients 3. We found no report of that about Nervecept; we mention it so you know why a pharmacist's check matters.
Take the five-question check first.
Ingredient by ingredient02
What side effects and cautions do the eight ingredients have?
Seven of the eight appear in a caution from a source we read. Common side effects are mild and stomach related.
| Ingredient | What the source says |
|---|---|
| Glucosamine sulfate | Nausea, heartburn, diarrhea, constipation 4. Shellfish allergy concern; could worsen insulin resistance 5; may raise INR with warfarin 5. |
| Chondroitin sulfate | Linked with more bleeding in people on warfarin; pregnancy and breastfeeding safety poorly understood 6. |
| Indian frankincense | Allergic skin reactions are the main side effect; may raise bleeding risk 7. |
| Turmeric | Nausea, reflux, diarrhea; liver harm reported with some curcumin products; may be unsafe in pregnancy 8; avoid with blood thinners 9. |
| Quercetin | A warfarin user's INR rose; possible interactions with losartan, tamoxifen and some chemotherapy 10. |
| Bromelain | Allergic reactions reported; avoid with blood thinners; may raise tetracycline levels 11. |
| MSM | Few and mild side effects reported up to four grams a day 12. |
| Methionine | No source fetched. Ask a pharmacist. |
Medicines03
Is Nervecept safe with blood thinners and other medicines?
Ask first. Several ingredients appear in blood-thinner cautions, so a doctor or pharmacist should check your list.
- Warfarin and other blood thinners: glucosamine, chondroitin, turmeric, frankincense, quercetin and bromelain each appear in a caution 6 9 7 10 11.
- Diabetes medicines: glucosamine may raise blood sugar in some people 6.
- Asthma: Mayo says glucosamine might worsen asthma 4.
- Tetracycline antibiotics: bromelain may raise levels 11.
Keep taking prescribed medicine, and never stop or change one because of a supplement. Tell your doctor what you take, especially before surgery 2. See supplements and blood thinners.
Allergy04
Does Nervecept contain shellfish?
The label prints CONTAINS: Shellfish (Crayfish). US law requires major allergens to be named on supplement labels 13.
Glucosamine supplements are typically made from shellfish shells, or made in a lab 4. A person with a shellfish allergy should not start without a clinician's say-so. Stop and get care for hives, swelling, wheezing or trouble breathing.
Nervecept: from $49 a bottle30 capsules · 2, 3 or 6 bottles · free US shipping on 3 and 6 · 60-day money-back guarantee
See packsWho should ask first05
Who should check with a doctor before taking Nervecept?
Anyone with a known medical condition, as the label says, plus these groups.
Pregnant or nursing
The label says to consult a physician. NCCIH says turmeric supplements in pregnancy may be unsafe 8.
Under 18
The label says children under 18 should consult a physician first.
Planned surgery
NIH says to tell providers about every supplement, particularly before surgery 2.
Rare liver injury has been reported with highly bioavailable curcumin products 8. If you notice fatigue, dark urine or yellow skin, stop and call a provider.
Emergency signs06
When is a symptom an emergency, not a side effect?
Sudden numbness or weakness on one side of the body, a drooping face, trouble speaking or seeing, or a severe sudden headache: call 911 14.
- Call 911Sudden numbness or weakness, especially on one side of the body; a drooping face; trouble speaking or seeing; sudden confusion or a severe headache with no known cause (CDC).
- Do not drive yourselfCDC says call 9-1-1 right away, and note when the symptoms began. Even symptoms that pass need prompt care.
- Call your provider quicklyA cut or blister on a foot that does not heal after a few days, or skin that turns red, warm or painful (NIDDK).
- See a clinician at the first signsTingling, weakness or pain in the hands or feet: Mayo says to seek medical care right away, and Cleveland Clinic says to see a provider at the first signs.
- A supplement is never a reason to waitTreatment depends on the cause. Early checks matter because some types can be stopped or reversed when found early.
Signs from CDC 14, Mayo Clinic 15, Cleveland Clinic 16 and NIDDK 17. This list is not complete.
FAQ07
Nervecept questions people ask
What are the side effects of Nervecept?
Is Nervecept safe with warfarin?
Can people with diabetes take it?
Is it safe during pregnancy?
The label says pregnant or nursing mothers should consult a physician first. Safety of chondroitin in pregnancy is poorly understood 6.
Does it cause liver problems?
Liver injury has been reported with highly bioavailable curcumin products, which NCCIH advises acting on 8. A capsule holds 50 mg of turmeric root. Report fatigue, dark urine or jaundice.
Does Nervecept contain hidden drugs?
We found no report of that. The FDA warns that some pain and arthritis products contain hidden drugs 3, so buy from the listed seller and keep the bottle.
What should I do if I feel unwell after taking it?
Stop and call your clinician or pharmacist, and bring the bottle. For chest pain, trouble breathing, swelling of the face or one-sided weakness, call 911.
Who wrote this08
Written and reviewed by
Pages built from the label, the sales page and linked NIH, FDA, CDC, FTC and peer-reviewed sources.
Last updated . Read our editorial standards and how we check reviews. This website is the information site for a USA Authorized Nervecept Retailer. It is not the manufacturer or the distributor named on the label. We earn money when you buy through our order links.
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